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It is well documented that the interlayer space of clay minerals, notably smectites (e.g., montmorillonite), can be intercalated with wide variety of inorganic cations or organic cations through ion exchange reactions or using other physical and chemical means of interaction. When the modification of smectite is performed with organic cations, their properties change from hydrophilic to hydrophobic. Therefore, the resulting materials become efficient sorbents of organic contaminants in wastewater, e.g., as sorbing...